Well the story goes...bought my 02 d/a ,has lots of miles , 142,000 but drives like a dream. Passed 2 inspections...looks new. 1 day after it's home find a leak, tcase has 2 small holes, dealer removes and says inards are shot (4hi seemed to go in ok although I never tried 4lo). After some pressure from me dealer offered to rebuild on his dime or gm remanufactured unit with improved covers etc. for a few hundred. Took the reman of course. Hoping this is the end of the tcase issue for me. Luck to others with this.